Lighting fixture



C. M. WEMPNER.

LIGHTING FIXTURE.

APPucATmN FILED Nov. 26. I9l9.

1,413,439, Patented Apr. 18, 1922.

CHARLES vivr. wnn rnnn, or s17. ouis, ivrrssonnr, assreno n r0 s'r Louis isnass v 7 MANUFACTURING COMPANY, on ST. Louis, MISSOURI, A oonronnrron on rssonar,

1&13239.

LIGHTING FIXTURE.

Specification of Letters Iatent. Patgnted 11 318, 192% Application filed November 26, 1919.. Serial No. 340,717.

To all whom it may concern:

Be it known that I, CHARLES M. VVEMPNER, a citizen of the United States of America, residing atithe city, of St. Louis, State of Missouri, United States of America, have invented .a certain new. and useful Lighting Fixture, of which the following is such a full, cleaiy and exact description as will enable any one skilled in the art to: which it appertains to make and use; the same, reference being had to the accompanying drawin s, forming part of this specification.

l Iy invention relates to a lighting fixture adapted for the illumination of counters and desks inbanking rooms and the like and is particularly directed to the means for controlling the light emitted in a manner con- .sistent with efficient utihzation of the l ghtproduced by the source. iAnotherrobject is to produce afixture all parts of which are.

' accessible for cleaning without disassembly;

In the'drawings, Figure l is a vertical cross sect on illustrating one embodiment of .my invention; Figure Zilltrstrates a modification; and Figure 3 is a view partly in cross section and partly in elevation along the line 83 of Figure 1. 1 represents a compartment or container preferably of sheet metal which may be attached to a wall or counter frame work by means of screws or in any other suitable manner. Ihe lamps 3 are supported from the wall of the wire conduit 4: by means of the stem 5 6 and 7 are light shields of translucenttmaterial preferably opal glass and the surface exposed to the light is adapted to reflect a portion of the light.

As shown in Figure 1, the shields 6 and 7 are pivoted at points substantially in horizontal alignment with the lamps and the surfaces of the shields above the pivots are at an angle to the surfacesbelow the pivots. In this figure the top and bottom of the container are both open; By adjusting the lower portions of the shields 6 and 7 toward and away from each other the proportion of direct rays emitted downward to the rays transmitted downward through the shields and diffused thereby can be varied at will and the intensity and character of the light on the counter thereby adjusted tosuit the convenience of the user. halves of the shields are moved to their open positions the upper halves are brought When the lower some of the light downward-and thus further increase the illumination on the desk When the lower halves are brought to closed position their surfaces reflect'up'ward some of the light emitted downwardly from the lamp and increase the upward illumination produced by the fixture.

A common practice infixtures of the general type herein described-is to provide a lowerv plate of translucent glass closing the bottom of thefixture; This is subject to the objection of having no means of regulation and to the further disadvantage that the glass must be removed, with the consequent dangers of breakage, inorder to clean it and the interior of the fixture. In my improved fixture, it will be noted that the translucent reflecting glass is all accessibleffor cleaning part andthat the fixture is capable OftProd'ucing the lighting effect on the deskwhich cent glass in the bottom of the fixture.

,without any d isassemblypr removal ofany i i i i 7 5 i would result from either clearer translir- In the modification illustrated intFigure 3 l V the upper half of the shields of Figure 1' have been omitted and the shape of the shields somewhat modified but the general zontally disposed container, a source of light in thecontainer and shields of translucent material on opposite sides of the perpendicprinciple of operation so far as downwardly controlled light is concerned is the same. In

ular axis of the light source and extending] below the horizontal axis of said source, said shields belng adjustable toward and away from each other at their lower ends to control the proportion of direct to diffused rays emitted downward from the fixture.

2. A lighting fixture comprising a hori or zontally disposed container open at the bottom and having an opaque front wall, a source of light in the container and shields of translucent material on opposite sides of a the perpendicular axis ofthelight source said source, said shields being adjustable toward and away from each other at their and extending below the horizontal axistof J lower ends to control the proportion of direct to diffused rays emitted downward from the fixture.

3. A lighting fixture comprising a horizontally disposed container, a source of light in the container, shields of translucent material on opposite sides of the perpendicular axis of the light source and extending above and below the horizontal axisv of said source and means for adjusting the angular position of the shields to control the proportion of direct to diffused rays emitted downward from the fixture.

4. A lighting fixture comprising a horizontally disposed container, a source of light in the container, shields of translucent material on opposite sides of the perpendicular axis of the light source and extending above and below the horizontal axis of said. source, said shields having surfaces adapted to refiect a portion of the light, and means for adjusting the angular position of. the shields to control the proportion of diffused rays to direct and reflected rays emitted downward from the fixture.

A lighting fixture comprising a horizontally disposed container, a source of light in the container, shield members of translucent material on opposite sides of the perpendicular axis of the light source and extendin above and below the horizontal axis of said source, and supporting and adjusting means for the shields whereby the upper shield members are brought toward each other when the lower shields are separated.

6. A lighting fixture comprising a horizontally disposed container, a source of light in the container, a light shield on one side of the perpendicular axis of the light source and extending above and below the horizontal axis of said source, the upper part of said shield being in a different plane from the lower part, and supporting and adjusting means for the shield whereby when the lower end is moved in one direction the upperend will move in the opposite-direction.

7. A lighting fixture comprising a horizontally disposed container, a source of light in the container, a light shield on each side of the perpendicular axis of the light source and extending above and below the horizontal axis of said source, the upper part. of

each shield being in a difi'erent plane from the lower part, and supporting and adjusting means for the shields whereby when the lower end of a shield is movedin one direction the upper-end will move in the opposite direction, the upper part of each shield being adapted to reflectlight downwardwhen the lower part is in full open position.

In testimony whereof, I have hereunto set my hand and afiixedmy sea-h CHARLES M. WEMPNER. [n $.1 

